Solved recovered ACAD files invalid.How to reconstruct invalid .DWG

October 21, 2015 at 10:56:03
Specs: Windows 7
Hello !
About a month ago the HDD (wd7500bpkt) of my Acer 7750G laptop decided to teach me a lesson about backing up data and not putting all the information on the same data storage device no matter how reliable the classic HDD has become.
The hdd failed and I tried to fix it with a recovery software and damaged it even further. I took it to a data recovery firm and they managed to recover some data but most of it is non usable(I am referring to .dwg files). The following message appears when I attempt to open a damaged .dwg file:

"Drawing file is not valid"

However, the file amounts to 1177 KB* which, to me, means that the file contains information but with missing bits; those missing bits may be interpolated using those that are intact as I don't think the .dwg file is encrypted with random sequences that can not be predicted(*that is roughly the same size it had prior to the failure).
I found "DWG Repair Toolbox" but have not tried it yet.
Has anyone tried repairing a damaged .dwg file and was successful in doing so ?What was the procedure, what software has been used?
Thank you !

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October 21, 2015 at 12:05:59

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October 21, 2015 at 19:57:24
✔ Best Answer
I guess you're trying to open them with autocad? If enough info still exists in the file possibly other software may work or at least give you a partial view of what remains. Here's a couple hits from a google search view "dwg" files:

Or try some of the other viewers/converters from the search.

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